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@article{DAN_1996_351_3_a4, author = {I. F. Sivergina}, title = {Invertibility and observability of evolution systems}, journal = {Doklady Akademii Nauk}, pages = {304--308}, publisher = {mathdoc}, volume = {351}, number = {3}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_351_3_a4/} }
I. F. Sivergina. Invertibility and observability of evolution systems. Doklady Akademii Nauk, Tome 351 (1996) no. 3, pp. 304-308. http://geodesic.mathdoc.fr/item/DAN_1996_351_3_a4/